Gas separating intake for progressing cavity pumps

Details Gas separating intake for progressing cavity pumps Gas separating intake for progressing cavity pumps

Category

E - Fixed Constructions

Subcategory

21

Subsubcategory

B

IPC codes

E21B 43/38 (2006.01) E21B 43/12 (2006.01) F04C 13/00 (2006.01)

Type

Patent

Patent number

CA 2425843

Description

A downhole pump assembly is suspended by tubing in a well. The pump assembly has a separator attached below a progressing cavity pump with a flexible shaft to accommodate the concentric path of the shaft of the separator and the eccentric path of the rotor of the pump. Vanes on the shaft of the separator use centrifugal force to separate the heavier liquids from the lighter gases in the well fluids. The separator discharges the gas into the casing and the liquid to the pump. A motor drives both the separator and the pump. A gear reduction unit is located between the motor and the pump in order to reduce the rotational speed from the motor to the desired rotational speed of the rotor for the pump.

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